The SLR Hut Zeiss 35mm f/1.4 Distagon T Lens for Canon EF maintains a 120-year Zeiss tradition of optically superb lenses, built to last - this very fast wide-angle 35mm lens offers all traditional advantages of Zeiss optics: precise manual focus and large rotational angle, unparalleled control of glare with stray light to ensure brilliant imagery, and an almost circular aperture delivering harmonious bokeh (difficult-to-define quality in out-of-focus areas pleasing to the eye); a robust all-metal precision construction. It has all the service of Canon DSLR's with EF mount.